The AD8027/AD8028 are low distortion, high speed rail-to-rail input/output amplifiers. They feature high speed 190 MHz bandwidth, low distortion, low noise, low power consumption, etc.
The AD8027 and AD8028 are high‑speed, low‑distortion rail‑to‑rail input/output amplifiers optimized for low supply voltages and wide dynamic range. They offer a typical –3 dB bandwidth of 190 MHz, a slew rate of 100 V/µs, and low noise performance (4.3 nV/√Hz voltage noise, 1.6 pA/√Hz current noise). The devices include a selectable input crossover threshold via the SELECT pin, allowing users to minimize distortion.
These amplifiers are suited for applications such as filters, ADC drivers, level shifting, buffering, professional video, and low‑voltage instrumentation. The datasheet provides detailed specifications, absolute maximum ratings, typical performance curves, and guidance on using the SELECT pin for power‑down and crossover control.
| Bandwidth (–3 dB) | 190 MHz |
|---|---|
| Slew Rate | 100 V/µs |
| Input Voltage Noise | 4.3 nV/√Hz |
| Input Offset Voltage | 900 µV max |
| Quiescent Current | 6.5 mA per amplifier |
| Supply Voltage Range | 2.7 V to 12 V |
| Operating Temperature Range | –40 °C to +125 °C |
The typical slew rate is 100 V/µs.
The crossover threshold is set via the SELECT pin, which allows the user to choose the voltage at which the input differential pairs switch.
In power‑down mode the amplifiers draw about 450 µA typical supply current.